Homopolymerization of cyclic olefins by a molybdenum olefin metathesis catalyst
- 65 Downloads
The cyclic olefins cyclopentene, norbornene, exo- and endodicyclopentadiene, exo, exo-norbornadiene dimer, and indene were homopolymerized by Mo (CO)5py/C2H5AlCl2/(C4H9)4NCl. In most cases, the polymers obtained were of the ring-opened type, but also showed ringretention to varying degrees, depending on the temperature of polymerization. Generally, ring-opening polymerization was favored at lower temperatures. The dicyclopentadiene monomers gave crosslinked materials, showing reaction through both double bonds.
KeywordsPolymer Indene Molybdenum Double Bond Metathesis
Unable to display preview. Download preview PDF.
- 1.V.M. Motz and M.F. Farona,Inorg. Chem., 16, 2545 (1977).Google Scholar
- 2.M.A. Alonso, K.E. Bower, J.A. Johnston and M.F. Farona,Polym. Bull., 19, 211 (1988).Google Scholar
- 3.M.A. Alonso and M.F. Farona,Polym. Bull., 18, 203 (1987).Google Scholar
- 4.J.A. Johnston, M. Tokles, G.S. Hatvany, P.L. Rinaldi, and M.F. Farona, submitted for publication.Google Scholar
- 5.C.S. Kraihanzel and F.A. Cotton,Inorg. Chem., 2, 533 (1963).Google Scholar
- 6.H.A. Bruson and T.W. Reiner,J. Amer. Chem. Soc., 67, 1178 (1945).Google Scholar
- 7.C. Tsonis and M.F. Farona,J. Polym. Sci., Polym. Chem. Ed., 17, 185 (1979).Google Scholar
- 8.H.Y. Chen,J. Polym. Sci., Part B, Polym. Lett., 12, 85 (1974).Google Scholar
- 9.C.J. Carman and C.E. Wilkes,Macromol., 7, 40 (1974).Google Scholar
- 10.D.J. Breslow,Chemtech, 540 (1990).Google Scholar